Improvement in feed-water heaters



C. F.. BARRETT. FEED WATER-HEATER.

Patented June 12,1877.

'INVENTOR.

MPEI'ERS, FHOTO-LITHOGRAPHER, WASNINGTDN. I! C- UNITED STATEs PATENT QFFIGE.

CHARLES F. BARRETT, OF NEW YORK, N. Y.

IMPROVEMENT IN FEED-WATER HEATERS.

Specification forming part of Letters Patent No. 191,74 7, dated J mm 12, 1877; application filed May 3, 1877.

To all whom it may concern:

Be it known that I, CHARLES F. BARRETT, of New York city, county of New York, State of New York, have invented a new and useful Improvement in Feed-Water Heaters, which is fully set forth in the following specifiration and accompanying drawings, in which Figure l is a side view of my improved feedwater heater; Fig. 2, a longitudinal cut section thereof.

The object of my invention is to supply a simple and cheap attachment to the exhaustpipe of a steam-cylinder, whereby the feedwater to the boiler may be heated by the waste or exhaust steam, so as to be delivered in the boiler in a heated state.

In the drawings, A is the exhaust-pipe B and B, the reservoirs; G, the feed-pipe; D, the discharge pipe E, the jacket or case, provided with stufling-boxes at the ends thereof; G G, the packing-glands; H, the chamber between the reservoirs.

This contrivance being secured upon the exhaust-pipe A, filled with steam, the feedwater enters reservoir B through feed-pipe (J, and, passing through chamber H between jacket E and pipe A, is heated before reaching reservoir B, whence it issues through discharge-pipe D to the boiler.

I have successfully employed this invention during the last year in about these proportions of mechanism: Diameter of exhaust-pipe, six inches; of jacket, seven inches; length of jacket, fourteen feet; reservoirs, three inches deep and have found that water entering at O at a temperature of about30 left at D at a temperature of 180, thereby securing a very considerable economy of fuel, and also lessening the strain on the boiler.

The purpose of the reservoirs is to accumulate a head of water, to avoid unnecessary strain of the heater, operating like the airchamber of a force-pump, to receive a portion of the pressure and cause its gradual distribution along the surface of the chamber; that of the stuffing-boxes to prevent leakage and permit the heater to expand and contract without injury.

It is manifest that this apparatus is not limited in its application to an exhaust-pipe, but may be operated by live steam when that method 1s preferred.

What I claim, and desire to secure by Letters Patent, is-

The combination of pipe A, jacket E, reservoirs B and B, packing-glands G G, and chamber H, operating together substantially as and for the purposes set forth.

C. F. BARRETT.

Witnesses:

S. J. Gonoon, JOHN W. RIPLEY. 

